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Java application if/case recommendation

- by Jesse

I am writing an application for a Java course. I am a complete beginner and am just going off material I have learned from the course and from the web. The application is exhibiting some behavior and I am not sure what is causing it. The application is GUI based and does calculations on user input. For the action listener section, I have a set of If statements such as: "if this button do this if this button do this" All in a row like that. It seems as if the application is running ALL the if statements instead of running the one that corresponds with the button pressed. Would I be better off using a case/switch structure for this sort of thing? I can post my code if necessary, I am new around this site and am not sure if that thing is acceptable.

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how to pass session variable to model in RoR?

- by siulamvictor

I used a global variable in my app for passing information before. But I got a problem and thanks everyone here suggested me to store those data in session with database. I tried, but I found that I can't access the session variable in Model. I googled and knew this is the Model normal behavior, RoR won't pass the session variable to Model. So how to pass the value of the session variable into Models? or is there any other method for my use case? I need a variable storing a value, which is required in all MVCs, and should be independent between different concurrent users. Thanks everyone. :)

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Confusions with CSS and JavaScript relations ?

- by Anil Namde

I have table cell which has class "cellActive". Which has following defination .cellActive{background:"#DDDDDD"} Now i am trying to read the background color property for the cell and it comes null/"". var bgColor = cell.style.backgroundColor; // returning "" Is that something mistake on my part of its by behavior. If CSS class is assigning CSS to element can't we read its value in JS ? Does this mean that if we are not assigning property directly to the element we cant get it if in case its inheriting it ?

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Sharepoint 2007 and <!DOCTYPE html>

- by Kondor

Greetings... I'm trying to get my Sharepoint 2007 site to render in Standards mode when browsing in IE. Since makes every browser that I might be worrying about do just that, I decided to use it. I've read here and there that Standards mode could cause unwanted behavior to some OOTB functionality and style (fly-outs, calendar items, etc...), but can't find a full list containing error reference and ways to correct it. So, I'm looking for any kind of info and guidance on the matter... Just trying to avoid endless clicking through my app and hopping that some one altruistic by nature has gone through testing hell already and is willing to share. Thanks...

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Routing problem, handling differently online versus local - MVC.net 1.0

- by VinnyG

I have there lines in my RegisterToutes : routes.MapRoute("Pages3", "{url1}/{url2}/{url3}", MVC.Page.RedirectTo(), new { url1 = "", url2 = "", url3 = "" }); routes.MapRoute("Pages2", "{url1}/{url2}", MVC.Page.RedirectTo(), new { url1 = "", url2 = "", url3 = "" }); routes.MapRoute("Pages1", "{url1}", MVC.Page.RedirectTo(), new { url1 = "", url2 = "", url3 = "" }); On my local machine and on my demo server (demo.myserver.com/myproject/) it works great for handling the 404, but live(www.mysite.com) it just go to the IIS 404. I have a PageController witch go see if the page exist in the DB and if it don't I return to a 404 view with the status code 404 (Response.StatusCode = 404;) How can I reproduce the same behavior live? Do I need to setup something on IIS? I'm on winserver 2008 using c# and MVC 1.0. Thanks for the help!

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Where does one enter the JavaScript code in CRM Dynamics?

- by Konrad Viltersten

I've started to play with CRM Dynamics yesterday so this question should be seen as a very basic one. I've been coding for many years but CRM D is news to me. Apparently, one is supposed to be able to enter JavaScript code to customize the behavior of the application. I've understood that there's an API for that and that touching DOM directly or playing with jQuery is a no-no. Question: Where is the JS-code supposed to be entered? I've gone through all the menus but as far I can see, there's no spot where I could plug-in my custom code. E.g.: Where do I get to define a validation for the last name of a contact currently being defined?

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How do they do it? Dialogs over home screen.

- by Brian515

Hi all, I'm writing an Android application and I would like to place a dialog or view over the home screen so that a user can enter text without jumping into my full application. I can't seem to get this to work. If I present a dialog (even in a transparent activity), my application launches. If you don't know what I'm talking about, take a look at the Facebook widget. I want to replicate a similar behavior to the clicking on the "What's on your mind?" box. Thanks for any help in advance! -Brian

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How to make margin be relative to the center of the UIElement and not its top-left corner in a Grid?

- by Nockawa

I'd like the Margin property to reference the center of the UIElement and not the top-left corner. That way when I change the width/height of the UIElement it stays in the same spot. Is there a way to configure this behavior or I'll have to rely on Binding to make the adjustment ? Thanks. For instance if I change the Width/Height of the following rectangle, its center will move. <Grid> <Rectangle Fill="#FF991C1C" Width="10" Height="40" HorizontalAlignment="Left" Margin="90,161,0,0" VerticalAlignment="Top"/> </Grid>

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issues using facebook iphone api to post image and text

- by Joey

I have been trying to use the facebook iphone api to publish an image and some text from my app (i.e. using FBRequest call:@"facebook.stream.publish" with the appropriate params. I've found that the behavior is extremely erratic, as it first worked fine when I implemented it, then, completely stopped working (the request would fail and nothing would show up), and now sometimes posts only the text and most of the time posts only the image in a gallery style (returning a failure). I've read that it's something broken on Facebook's side, however, I see other people's games posting things periodically with images and text and wonder if I might be doing something fundamentally different that is much less reliable or stable. Has anyone encountered such an issue or has more familiarity with this?

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NLP: any easy and good methods to find semantic similarity between words?

- by sadawd

Dear Everyone, I don't know whether stackoverflow covers NLP, so I am gonna give this a shot. I am interested to find the semantic relatedness of two words from a specific domain, i.e. "image quality" and "noise". I am doing some research to determine if reviews of a cameras are positive or negative for a particular attribute of the camera. (like image quality in each one of the reviews). However, not everybody uses the exact same wording "image quality" in the posts, so I am out to see if there is a way for me to build something like that: "image quality" which includes ("noise", "color", "sharpness", etc etc) so I can wrap all everything within one big umbrella. I am doing this for another language, so Wordnet is not necessarily helpful. And no, I do now work for Google or Microsoft so I do not have data from people's clicking behavior as input data either. However, I do have a lot of text, pos-tagged, segmented etc. Thanks

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Why is this std::bind not converted to std::function?

- by dauphic

Why is the nested std::bind in the below code not implicitly converted to an std::function<void()> by any of the major compilers (VS2010/2012, gcc, clang)? Is this standard behavior, or a bug? #include <functional> void bar(int, std::function<void()>) { } void foo() { } int main() { std::function<void(int, std::function<void()>)> func; func = std::bind(bar, 5, std::bind(foo)); std::cin.get(); return 0; }

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Enums With Default Throw Clause?

- by Tom Tresansky

I noticed the following in the Java Language spec in the section on enumerations here: link switch(this) { case PLUS: return x + y; case MINUS: return x - y; case TIMES: return x * y; case DIVIDE: return x / y; } throw new AssertionError("Unknown op: " + this); However, looking at the switch statement definition section, I didn't notice this particular syntax (the associated throw statement) anywhere. Can I use this sort of "default case is throw an exception" syntactic sugar outside of enum definitions? Does it have any special name? Is this considered a good/bad practice for short-cutting this behavior of "anything not in the list throws an exception"?

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How to make pytest display a custom string representation for fixture parameters?

- by Björn Pollex

When using builtin types as fixture parameters, pytest prints out the value of the parameters in the test report. For example: @fixture(params=['hello', 'world'] def data(request): return request.param def test_something(data): pass Running this with py.test --verbose will print something like: test_example.py:7: test_something[hello] PASSED test_example.py:7: test_something[world] PASSED Note that the value of the parameter is printed in square brackets after the test name. Now, when using an object of a user-defined class as parameter, like so: class Param(object): def __init__(self, text): self.text = text @fixture(params=[Param('hello'), Param('world')] def data(request): return request.param def test_something(data): pass pytest will simply enumerate the number of values (p0, p1, etc.): test_example.py:7: test_something[p0] PASSED test_example.py:7: test_something[p1] PASSED This behavior does not change even when the user-defined class provides custom __str__ and __repr__ implementations. Is there any way to make pytest display something more useful than just p0 here? I am using pytest 2.5.2 on Python 2.7.6 on Windows 7.

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Drupal rendering incomplete views

- by Paul

I got tapped to do some quick maintenance on a recently migrated Drupal site. I'm pretty new to Drupal, so hopefully the problem is something that more experienced guys will figure out quick. Behavior is as follows. The public content works fine as far as I can tell. When I go to login, the login form renders correctly, but when I post the form w/ my credentials, I get back a blank page (not a 404; looks like a 200 to the /user URL, but all the gets rendered is empty Head and body tags). If i refresh the page, I get the content of my profile view, but none of the site chrome or CSS. Note that this is not an issue on the site it was migrated from, so it seems like something wasn't copied over correctly. The site's not public, so I can't provide a URL, sorry!

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.NET make a copy of an embedded file resource to the local drive

- by Matt H.

Hi, i'm new to the realm to working with Files in .NET I'm creating a WPF application in VB.NET with the 3.5 Framework. (If you provide an example in C#, that's perfectly fine.) In my project I have a Template for an MS Access database. My desired behavior is that when the users clicks File--New, they can create a new copy of this template, give it a filename, and save it to their local directory. The database already has the tables and some starting data needed to interface with my application (a user-friendly data editor) I'm thinking the approach is to include this "template.accdb" file as a resource in the project, and write it to a file somehow at runtime? Any guidance will be very, very appreciated. Thanks!

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Is there a writable iterator in Java?

- by Lukasz Lew

In C+ one can use iterators for writing to a sequence. Simplest example would be: vector<int> v; for (vector<int>::iterator it = v.begin(); it!=v.end(); ++it) { *it = 42; } I need something more complicated - keep iterator as a class member for a later use. But I don't know how to get this behavior from Java iterators. Are there writable iterators in Java at all? If not then what replaces them?

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How to change input button image using CSS?

- by Baltimark

So, I can create an input button with an image using <INPUT type="image" src="/images/Btn.PNG" value=""> But, I can't get the same behavior using CSS. for instance, i've tried <INPUT type="image" class="myButton" value=""> where "myButton" is defined in the css file as .myButton{ background:url(/images/Btn.PNG) no-repeat; cursor:pointer; width: 200px; height: 100px; border: none; } If that's all I wanted to do, I could use the original style, but I want to change the button's appearance on hover (using a myButton:hover class). I know the links are good because I've been able to load them for a background image for other parts of the page (just as a check). I found examples on the web of how to do it using javascript, but I'm looking for a css solution. I'm using Firefox 3.0.3 if that makes a difference. Thanks

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Samsung TV Emulator font size

- by jperovic

Can someone please help me with this issue. I've been banging my head to find the solution but no help... The problem is that Samsung TV Emulator displays everything enlarged (line font-size 30ish pixels) and there does seem to have a way to override it. This only happens within Samsung UI components. To make sure it wasn't something with my project I've downloaded sample project from Brightcove: Sample project but noticed the same behavior with that as well. Here is the screenshot of my "project". It only one scene with two UI components: http://tinypic.com/r/124evqc/6 Opposed to that, here's what I see in my IDE view: http://tinypic.com/r/ezmn4l/6. As a side-note, I had to put height: 20px in both of my UI components' CSS in order for IDE to show them that way. Can anyone suggest what am I supposed to do?

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iPhone keyboard, Done button and resignFirstResponder

- by nevan

This is probably a dumb question, but I can't find the answer in the docs. Did the "Done" button on the pop-up keyboard always cause the keyboard to disappear? I see a lot of code around the web like this: - (BOOL)textFieldShouldReturn:(UITextField *)theTextField { [theTextField resignFirstResponder]; return YES; } When I press the "Done" button, the keyboard pops down and the UITextField resigns first responder. I'm presuming that pressing the "Done" button didn't used to cause a UITextField to resignFirstResponder, but that behavior changed at some time. I'm debugging on OS 3.0 - 3.1.3

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NSTextField (Label) Attributed Text: Select

- by huntaub

I have a NSTextField Label that has attributed text in it. The color and size are different from the defaults. (The text is a bit larger and green) Now, I need to be able to select the text in the label so as the click the hyperlinks embedded in the attributed text. This works fine; however, when selecting the text the format of the text reverts back to the defaults (a smaller, black font). Is there anyway to stop this behavior so that my styling is preserved when the user clicks (selects text) on a Label?

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C++, create an instance from a static method

- by Manux

Hello, let's say I want my users to use only one class, say SpecialData. Now, this data class would have many methods, and depending on the type of data, the methods do different things, internally, but return externally similar results. Therefore my wanting to have one "public" class and other "private", child classes that would change the behavior of methods, etc... It would be amazingly more simple for some types of data that need to be built to do something like this: SpecialData& sm = SpecialData::new_supermatrix(); and new_supermatrix() would return a SuperMatrix instance, which inherits from most behaviors of SpecialData. my header: static SpecialData& new_supermatrix(); my cpp: SpecialData& SpecialData::new_supermatrix()(){ return SuperMatrix(MATRIX_DEFAULT_MAGNITUDE,1000,1239,FLOAT32,etc...); } The problem is, I get this error, which is probably logical due to the circumstances: invalid initialization of non-const reference of type ‘SpecialData&’ from a temporary of type ‘SpecialData’ So, any ideas?

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JavaScript using toString on a Function object to read text content

- by mseeley

Calling toString() on the function below returns different strings across browsers. I understand this is because ECMA-262 15.3.4.2 leaves wiggle room for each vendor. Chrome returns the comments in addition to all syntax. Sadly Firefox 3.6 omits the comments. Based on Firefox's behavior I haven't tested IE, Opera, or Safari. function foo() { /* comment */ var bar = true; } Specifically, I am attempting to embed meta data within a specially formatted comment block within a function. Later the return value of the functions toString() method would be parsed and values returned as an object. I've been unable to locate compatibility tables or alternatives to toString(). Does the community have any ideas? Btw, pre-processing JS files isn't an option. :( Thanks a lot. :)

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Sprintf equivalent in Mathematica?

- by jxy

I don't know why Wikipedia lists Mathematica as a programming language with printf. I just couldn't find the equivalent in Mathematica. My specific task is to process a list of data files with padded numbers, which I used to do it in bash with fn=$(printf "filename_%05d" $n) The closest function I found in Mathematica is PaddedForm. And after some trial and error, I got it with "filename_" <> PaddedForm[ Round@#, 4, NumberPadding -> {"0", ""} ]& It is very odd that I have to use the number 4 to get the result similar to what I get from "%05d". I don't understand this behavior at all. Can someone explain it to me? And is it the best way to achieve what I used to in bash?

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Gtting X-windows error while runing gtk application.

- by PP

I have written one gtk application but i am getting following X Windows error while running it: The program 'TestApp' received an X Window System error. This probably reflects a bug in the program. The error was 'BadMatch (invalid parameter attributes)'. (Details: serial 222 error_code 8 request_code 2 minor_code 0) (Note to programmers: normally, X errors are reported asynchronously; that is, you will receive the error a while after causing it. To debug your program, run it with the --sync command line option to change this behavior. You can then get a meaningful backtrace from your debugger if you break on the gdk_x_error() function.) What might be the cause of this error? I have written this app in GTK+ and C. Thank, PP.

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What is the best way to add attributes to auto-generated entities (using VS2010 and EF4)

- by Dani

ASP.NET MVC2 has strong support for using attributes on entities (validation, and extending Html helper class and more). If I generated my Model from the Database using VS2010 EF4 Entity Data Model (edmx and it's cs class), And I want to add attributes on some of the entities. what would be the best practice ? how should I cope with updating the model (adding more fields / tables to the database and merging them into the edmx) - will it keep my attributes or generate a new cs file erasing everything ? (Manual changes to this file may cause unexpected behavior in your application.) (Manual changes to this file will be overwritten if the code is regenerated.)

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